个性化检索中的用户ontology及其构建

为使用户能够从信息庞杂的网络中方便准确地找到自己所需的信息，在传统检索技术的基础上，结合ontology及个性化检索技术的研究，提出个性化检索中用户ontology的概念，讨论了基于行为的用户描述文件的建立，并制定了个性化检索中语义关系的提取规则。最后在此基础上给出了用户ontology的构建方法，并通过比较实验说明了用户ontology在个性化检索中的有效性。

Construction of user ontology and its application in personalized retrieval

To let users easily and correctly find the correct information they want from the Interact where the information is numerous and jumbled, on the basis of traditional retrieval technique, the concept of user ontology in personalized retrieval was proposed in combination with the research of ontology and personalized retrieval technique. The construction and maintenance of user profile based on behavior was introduced. And the extraction rules of semantic relations were discussed in detail. The method of constructing the user ontology was given based on the discussions. Finally, the availability of using user ontology in personalized retrieval was shown by a comoarative exoeriment.